3.10.2 I²C Display Control

The display used in this demo is an Organic Light Emitting Diode (OLED) display in a glass package. This particular display requires a dedicated +12V input for the panel itself, in addition to the standard logic level power supply. Since a +12V supply is already generated for the switching FET and cooling fans, this did not add to the Bill of Materials (BOM). The MCU communicates with the display using two I/O lines for the Inter-Integrated Circuit (I²C) and an additional I/O for controlling the display Reset during start-up.